Detachable device for actuating an electric socket-switch.



S. HATA.

DETACHABLE DEVICE FOR ACTUATING AN ELECTRIC SOCKET SWITCH.

APPLICATION FILED OCT- 18. 1915.

0 W 9 11 9 2 m a a g 9 .3 u A 8 m d 5 6 t n nu t a P WITNESSES:

'TORV SHINKICHI HA'IA, 0F SEATTLE, WASHINGTON.

DETACHABLE DEVICE FOR ACTUATING AN ELECTRIC SOCKET-SWITCH.

Application filed October 18, 1915.

To all whom it may concern 'Be it known that I, SHINKICHI HATA, a subject of the Emperor of Japan, residing at Seattle, in the county of Kingand State of Washington, have invented a certain new and useful Improvement in Detachable Devices for Actuating an Electric Socket- Switch, of which the following is a specification.

My invention relates to improvements in detachable means for actuating electric switches which are embodied in sockets that are adapted'to serve as connectors between an electric circuit and devices that are to be operated by electricity, and the object of my improvements is to provide a simple and reliable construction of pawl and ratchet mechanism that shall be adapted to be removably attached to the handle of the rotatable shaft of an electric socket switch. 1 accomplish this object by devices illustrated in the accompanying drawings wherein- Figure 1 is a view in side elevation of some of the operative parts of my invention; Fig. 2 is'a view in vertical section on broken line :13, :r of Fig. 1 showing the same associated with an incandescent electric lamp; Fig. 3 is a plan view of the devices shown in Fig. 2; and Fig. 4 is a view in rear elevation of details of my invention.

Referring to the drawings, throughout which like reference numerals indicate like parts, 5 designates the handle of a snapswitch Whose operativeparts are inclosed within a socket 6 of an incandescent electric lamp 7. A clamp 8, of sheet metal, is formed to extend around the handle 5 to engage with its broader sides and be clamped to said handle 5 by a screw 9 and a nut 1twhich extends through portions of said clamp 8 which project for a distance from one edge of the handle 5, as more clearly indicated in Figs. 3 and 4. Integrally connected with said clamp 8 is an extended portion 11 which is turned to a right angle with respect to the handle 5, as more clearly indicated in Fig. 2, and to the outer fiat vertical surface of such extended portion 11 is attached by solder a ratchet wheel 12 disposed with its axis in line with the axis of the handle 5, whereby a rotation of such ratchet wheel 12 will communicate a rotary movement to the handle 5 thereby to turn the shaft of the snap-switch that is disposed within the socket 6.

Specification of Letters Patent.

Patent-ed Aug. 29, 191%.

Serial No. 56,370.

Integral with the ratchet wheel 12 is a stud 13 which projects from the central portion of the outer side of said ratchet wheel 12 whereby such stud 13 is concentric with the axis of the handle 5 and with the periphery of the ratchetwheel 12, and upon such stud 13 is rotatably mounted asleeve 14 whlch is maintained in its position on said stud 13 by .a Washer 15 and a cotter pin 16, and integrally attached to said sleeve 14 is a lever 17, as-more clearly shown in Fig. l, which lever 17 has one of its portions normally disposed to extend obliquely upward and to the upwardly extended end portion of said lever 17 is attached a cord 18, and also to such upwardly extended end portion issecured a ratchet pawl 19 made of spring wire to extend in a loop whose end is dis posed to-engage with the teeth of the ratchet 12, in the manner indicated more clearly in Figs. 1 and 3. The pawl 19 is formed of resilient wire and is of U-shape, the same being pivotally connected at its ends as at 22 to opposite sides of the lever 17. In order to place the wire pawl 19 under tension, I have provided oppositely projecting pins 23 upon the lever 17 for engagement with the pawl as is plainly shown in Fig. 1. .By this construction, the pawl 19 is positively held in resilient engagement with the ratchet wheel 12 at all times during different relative positions of the ratchet wheel and pawl. Another portion of the lever 17 is normally disposed to extend vertically downward from the sleeve 14 to a point below the teeth of the ratchet 12 and to its lower end portion is attached a weight 20 which serves normally to maintain the lever 17 in its position as indicated in Fig. 1, so

that if the cord 18 be pulled downwardly for a suliicie'nt distance then the lever 17 with its weight 20 will assume the position indicated by the dotted lines in Fig. 1, and during the movement of such lever 17 from its normal position to the position indicated by such dotted lines the ratchet wheel 12- will be rotated in a clockwise direction throughout an angular distance of ninety degrees, and upon a release of the cord 18 the weight 20 by its gravity will act to move the lever 17 back to its normal posit-ion as indicated by full lines in Fig. 1. Thus, if the switch within the socket (5 be of a form of construction most commonly used, then one do\\-11\\'a1d pull upon the cord 18 would close the circuit of the lamp 7 While a suc ceeding pull on said cord 18 wouldopen the circuit of said lamp 7, thus, successive pulls on the cord 18 would alternately light and ext nguish the lamp 7 in an obvious mzfnner.

ll/lanitestly changes may be made in the forms, dimensions and arrangement of parts of my invention without departing from the spirit thereof.

What I claim is:

A device of the class described including a rotatable support, a ratchet wheel fixed concentrically thereto, a weighted lever journaled on the ratchet wheel c0ncentri cally to the support and ratchet wheel, a U-shaped spring wire pawl having its ends fixed to opposite sides of the lever with the bight engaging the ratchet wheel, and pins carried by the opposite sides of the lever engaging the legs of the pawl to place the same under tension and hold the pawl in engagement with the ratchet wheel at all times during different relative positions of the ratchet wheel and pawl.

In witness whereof, I, hereunto suhscrihc my name this eighth day of October A. D. 1915.

stHNKIcHI HATA. Witnesses O. JoimsoN, FRANK VARREN.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Fatcnts, Washington, 1). C." 

